Americans spend nearly billion on Halloween costumes and decorations. Sample data showing the amount, in dollars, adul
Posted: Mon Jul 11, 2022 11:29 am
Americans spend nearly billion on Halloween costumesand decorations. Sample data showing the amount, indollars, adults spent on a Halloween costume are asfollows.
a. What is the estimate of the populationmean amount adults spend on a Halloween costume (to 2decimals)?
b. What is the sample standard deviation(to 2 decimals)?
c. Provide a confidenceinterval estimate of the population standard deviation for theamount adults spend on a Halloween costume (to 2 decimals).
a. What is the estimate of the populationmean amount adults spend on a Halloween costume (to 2decimals)?
b. What is the sample standard deviation(to 2 decimals)?
c. Provide a confidenceinterval estimate of the population standard deviation for theamount adults spend on a Halloween costume (to 2 decimals).